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WorksheetsAdding & Multiplying Probability
Total questions: 11
Worksheet time: 16mins
Name
Class
Date
1.
If you draw one card from a standard deck, what is the probability of drawing a 5 AND a diamond (5 of diamonds)?
a)
2/52
b)
4/52
c)
1/52
d)
26/52
2.
A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?
a)
1/9
b)
2/9
c)
5/21
d)
10/21
3.
A bag has 3 red, 5 blue, and 2 yellow pieces of candy. What is the probability of drawing a blue piece of candy?
a)
1/2
b)
1/10
c)
3/10
d)
1/3
4.
What is the probability the spinner stops on yellow?
a)
.05
b)
50%
c)
25%
d)
3/8
5.
How many boys can speak German?
a)
8
b)
20
c)
2
d)
10
6.
Mr. Martin has a standard deck of cards.
P (Ace or 5)
a)
1/13
b)
2/13
c)
1/26
d)
8/50
7.
What is the probability of spinning red?
a)
0
b)
1/2
c)
3/4
d)
1
8.
You pick a marble from this bag.
What is the probability you will choose either a black or white marble?
What is the probability you will choose either a black or white marble?
a)
3/5
b)
9/100
c)
1/10
d)
2/5
9.
The Safe Drinking Water Hotline routinely tracks requests for information about water quality. The table above shows the sources of some of its calls.
What is the probability that a request comes from a school given that it is an e-mail request?
a)
1/62
b)
1/63
c)
1/82
d)
1/117
e)
64/90,123
10.
Clara picks a card at random, puts it back, and then picks another card at random.
a)
Independent
b)
Dependent
11.
At Kennett High School, 5% of athletes play both football and some other contact sport, 30% play football, and 40% play other contact sports. If there are 200 athletes, how many play neither football nor any other contact sport?
a)
20
b)
70
c)
80
d)
200
e)
130
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